include/object.h

   1 /*
   2   Pacman Arena
   3   Copyright (C) 2003 Nuno Subtil
   4
   5   This program is free software; you can redistribute it and/or
   6   modify it under the terms of the GNU General Public License
   7   as published by the Free Software Foundation; either version 2
   8   of the License, or (at your option) any later version.
   9
  10   This program is distributed in the hope that it will be useful,
  11   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13   GNU General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program; if not, write to the Free Software
  17   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 /* $Id: object.h,v 1.2 2003/11/22 17:32:10 nsubtil Exp $ */
  21
  22 #ifndef _OBJECT_H
  23 #define _OBJECT_H
  24
  25 #define X 0
  26 #define Y 1
  27 #define Z 2
  28 #define W 3
  29
  30 #define R 0
  31 #define G 1
  32 #define B 2
  33 #define A 3
  34
  35 struct face_tri
  36 {
  37         /* vértices */
  38         float *a, *b, *c;
  39         /* normais */
  40         float na[3], nb[3], nc[3];
  41
  42         /* cor da face */
  43         float color[4];
  44         /* tag de cor */
  45         int color_tag;
  46 };
  47
  48 struct object
  49 {
  50         /* num de faces */
  51         int num_fc;
  52         /* lista de faces */
  53         struct face_tri **fc_list;
  54
  55         /* display list deste objecto para polígonos de cor fixa*/
  56         GLuint dlist_color;
  57         /* polígonos de cor variável */
  58         GLuint dlist_nocolor;
  59
  60         struct object *next;
  61 };
  62
  63 /* caches */
  64 struct ocache_entry
  65 {
  66         char *name;
  67         struct object *objs;
  68         int n_objs;
  69
  70         struct ocache_entry *next;
  71 };
  72
  73 int object_hash_vertex(float vx[3]);
  74 int object_hash_face(struct face_tri *face);
  75 void object_add_face(struct object *obj, struct face_tri *face);
  76 struct object *object_cache_find_file(char *fname, int *n_objs);
  77 void object_cache_add_file(char *fname, struct object *objs, int n_objs);
  78 int object_face_equal(struct face_tri *f1, struct face_tri *f2);
  79 int object_get_vertex_index(float **vx_list, int num_vx, float vec[3]);
  80 int object_get_face_index(struct face_tri **fc_list, int num_fc, struct face_tri *fc);
  81 void object_write_file(char *fname, struct object *objs, int n_objs);
  82 struct object *object_read_file(char *fname, int *n_objs);
  83 void object_release_dlists(void);
  84 void object_recompile_dlists(void);
  85
  86 #endif